package day1;

/**
 * @author oldliu
 * @since 1.0
 */
public class VarTest {
    public static void main(String[] args) {
        int a=20;
        int b=a;
        System.out.println("a="+a+"\nb="+b);
        a=100;
        System.out.println("a="+a+"\nb="+b);
    }
}
